ISO 17892-9:2018
Geotechnical investigation and testing - Laboratory testing of soil - Part 9: Consolidated triaxial compression tests on water saturated soils

Standard No.

ISO 17892-9:2018

Release Date

2018

Published By

International Organization for Standardization (ISO)

Latest

ISO 17892-9:2018

Scope

This document specifies a method for consolidated triaxial compression tests on water-saturated soils. This document is applicable to the laboratory determination of triaxial shear strength under compression loading within the scope of geotechnical investigations. The cylindrical specimen, which can comprise undisturbed, re-compacted, remoulded or reconstituted soil, is subjected to an isotropic or an anisotropic stress under drained conditions and thereafter is sheared under undrained or drained conditions. The test allows the determination of shear strength, stress-strain relationships and effective stress paths. All stresses and strains are denoted as positive numerical values in compression. NOTE 1 This document provides a test for a single specimen. A set of at least three relatable tests are required to determine the shear strength parameters from these tests. Procedures for evaluating the results are included in Annex B and, where required, the shear strength parameters are to be included in the report. Special procedures such as: a) tests with lubricated ends; c) tests with zero lateral strain (K0) consolidation; e) tests without rubber membranes; b) multi-stage tests; d) tests with local measurement of strain or local measurement of pore pressure; f) extension tests; g) shearing where cell pressure varies, are not fully covered in this procedure. However, these specific tests can refer to general procedures described in this document. NOTE 2 This document fulfils the requirements of consolidated triaxial compression tests for geotechnical investigation and testing in accordance with EN 1997-1 and EN 1997-2.

ISO 17892-9:2018 Referenced Document

• EN 1997-1:2004 Eurocode 7 - Geotechnical design - Part 1: General rules*， 2024-04-20 Update
• EN 1997-2:2007 Eurocode 7 - Geotechnical design - Part 2: Ground investigation and testing
• ISO 14688-1:2017 Geotechnical investigation and testing - Identification and classification of soil - Part 1: Identification and description
• ISO 17892-1:2014 Geotechnical investigation and testing - Laboratory testing of soil - Part 1: Determination of water content
• ISO 17892-2:2014 Geotechnical investigation and testing - Laboratory testing of soil - Part 2: Determination of bulk density
• ISO 17892-3:2015 Geotechnical investigation and testing - Laboratory testing of soil - Part 3: Determination of particle density
• ISO 7500-1:2015 Metallic materials - Calibration and verification of static uniaxial testing machines - Part 1: Tension/compression testing machines - Calibration and verification of the force-measuring system

ISO 17892-9:2018 history

• 2018 ISO 17892-9:2018 Geotechnical investigation and testing - Laboratory testing of soil - Part 9: Consolidated triaxial compression tests on water saturated soils